Language in the defense authorization bill passed this week will require the Army to submit a transportation plan to Congress in the next 90 days, addressing how 6,400 new Pentagon workers will commute to a new office with no access to Metro.

It's being called a potential traffic catastrophe. Thousands of federal workers, and their cars, are being shifted to already crowded roads in Northern Virginia as part of BRAC. Now, there are efforts to stop it.